test: align usage of jest expect across tests

.eslintrc

@@ -1,31 +1,37 @@
 {
-  extends: [
+  "extends": [
     "airbnb-base",
     "plugin:flowtype/recommended"
   ],
-  parser: "@babel/eslint-parser",
-  plugins: [
-    "flowtype"
+  "parser": "@babel/eslint-parser",
+  "plugins": [
+    "flowtype",
   ],
-  rules: {
-    'max-len': 'off',
-    'no-template-curly-in-string': 'off',
+  "rules": {
+    "max-len": "off",
+    "no-template-curly-in-string": "off",
   },
   "overrides": [
     {
-      "files": ["src/rules/*.js"],
+      "files": ["src/rules/*"],
       "extends": ["plugin:eslint-plugin/rules-recommended"],
       "rules": {
         "eslint-plugin/require-meta-docs-url": [
           "error",
-          { "pattern": "https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/tree/HEAD/docs/rules/{{name}}.md" }
+          { "pattern": "https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/tree/HEAD/docs/rules/{{name}}.md" },
         ],
-        "eslint-plugin/require-meta-type": "off"
-      }
+        "eslint-plugin/require-meta-type": "off",
+      },
     },
     {
       "files": ["__tests__/src/rules/*.js"],
-      "extends": ["plugin:eslint-plugin/tests-recommended"]
-    }
-  ]
+      "extends": ["plugin:eslint-plugin/tests-recommended"],
+    },
+    {
+      "files": ["__tests__/**/*"],
+      "env": {
+        "jest": true,
+      },
+    },
+  ],
 }

__tests__/index-test.js

@@ -1,9 +1,8 @@
-/* eslint-env jest */
 /* eslint global-require: 0 */
 
-import assert from 'assert';
 import fs from 'fs';
 import path from 'path';
+import expect from 'expect';
 import plugin from '../src';
 
 const rules = fs.readdirSync(path.resolve(__dirname, '../src/rules/'))
@@ -12,8 +11,7 @@ const rules = fs.readdirSync(path.resolve(__dirname, '../src/rules/'))
 describe('all rule files should be exported by the plugin', () => {
   rules.forEach((ruleName) => {
     it(`should export ${ruleName}`, () => {
-      assert.equal(
-        plugin.rules[ruleName],
+      expect(plugin.rules[ruleName]).toEqual(
         require(path.join('../src/rules', ruleName)) // eslint-disable-line
       );
     });
@@ -22,7 +20,7 @@ describe('all rule files should be exported by the plugin', () => {
 
 describe('configurations', () => {
   it('should export a \'recommended\' configuration', () => {
-    assert(plugin.configs.recommended);
+    expect(plugin.configs.recommended).toBeDefined();
   });
 });
 
@@ -33,7 +31,7 @@ describe('schemas', () => {
       const schema = rule.meta && rule.meta.schema && rule.meta.schema[0];
       const { type } = schema;
 
-      assert.deepEqual(type, 'object');
+      expect(type).toEqual('object');
     });
   });
 });

__tests__/src/rules/accessible-emoji-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce <marquee> elements are not used.
  * @author Ethan Cohen

__tests__/src/rules/alt-text-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce all elements that require alternative text have it.
  * @author Ethan Cohen

__tests__/src/rules/anchor-has-content-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce anchor elements to contain accessible content.
  * @author Lisa Ring & Niklas Holmberg

__tests__/src/rules/anchor-is-valid-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Performs validity check on anchor hrefs. Warns when anchors are used as buttons.
  * @author Almero Steyn

__tests__/src/rules/aria-props-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce all aria-* properties are valid.
  * @author Ethan Cohen

__tests__/src/rules/aria-proptypes-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce ARIA state and property values are valid.
  * @author Ethan Cohen
@@ -10,6 +9,7 @@
 
 import { aria } from 'aria-query';
 import { RuleTester } from 'eslint';
+import expect from 'expect';
 import parserOptionsMapper from '../../__util__/parserOptionsMapper';
 import rule from '../../../src/rules/aria-proptypes';
 

__tests__/src/rules/aria-role-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce aria role attribute is valid.
  * @author Ethan Cohen

__tests__/src/rules/aria-unsupported-elements-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce that elements that do not support ARIA roles,
  *  states and properties do not have those attributes.

__tests__/src/rules/autocomplete-valid-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Ensure autocomplete attribute is correct.
  * @author Wilco Fiers

__tests__/src/rules/click-events-have-key-events-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce a clickable non-interactive element has at least 1 keyboard event listener.
  * @author Ethan Cohen

__tests__/src/rules/control-has-associated-label-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Control elements must be associated with a text label
  * @author jessebeach

__tests__/src/rules/heading-has-content-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce heading (h1, h2, etc) elements contain accessible content.
  * @author Ethan Cohen

__tests__/src/rules/html-has-lang-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce html element has lang prop.
  * @author Ethan Cohen

__tests__/src/rules/iframe-has-title-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce iframe elements have a title attribute.
  * @author Ethan Cohen

__tests__/src/rules/img-redundant-alt-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce img alt attribute does not have the word image, picture, or photo.
  * @author Ethan Cohen

__tests__/src/rules/interactive-supports-focus-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce that elements with onClick handlers must be focusable.
  * @author Ethan Cohen

__tests__/src/rules/label-has-associated-control-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce label tags have an associated control.
  * @author Jesse Beach

__tests__/src/rules/label-has-for-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce label tags have htmlFor attribute.
  * @author Ethan Cohen

__tests__/src/rules/lang-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce lang attribute has a valid value.
  * @author Ethan Cohen

__tests__/src/rules/media-has-caption-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview <audio> and <video> elements must have a <track> for captions.
  * @author Ethan Cohen

__tests__/src/rules/mouse-events-have-key-events-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce onmouseover/onmouseout are accompanied
  *  by onfocus/onblur.

__tests__/src/rules/no-access-key-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce no accesskey attribute on element.
  * @author Ethan Cohen

__tests__/src/rules/no-autofocus-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce autoFocus prop is not used.
  * @author Ethan Cohen <@evcohen>

__tests__/src/rules/no-distracting-elements-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce distracting elements are not used.
  * @author Ethan Cohen

__tests__/src/rules/no-interactive-element-to-noninteractive-role-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Disallow inherently interactive elements to be assigned
  * non-interactive roles.

__tests__/src/rules/no-noninteractive-element-interactions-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce non-interactive elements have no interactive handlers.
  * @author Ethan Cohen

__tests__/src/rules/no-noninteractive-element-to-interactive-role-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Disallow inherently non-interactive elements to be assigned
  * interactive roles.

__tests__/src/rules/no-noninteractive-tabindex-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Disallow tabindex on static and noninteractive elements
  * @author jessebeach

__tests__/src/rules/no-onchange-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce usage of onBlur over onChange on select menus for accessibility.
  * @author Ethan Cohen

__tests__/src/rules/no-redundant-roles-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce explicit role property is not the
  * same as implicit default role property on element.

__tests__/src/rules/no-static-element-interactions-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce static elements have no interactive handlers.
  * @author Ethan Cohen

__tests__/src/rules/role-has-required-aria-props-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce that elements with ARIA roles must
  *  have all required attributes for that role.

__tests__/src/rules/role-supports-aria-props-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce that an element does not have an unsupported ARIA attribute.
  * @author Ethan Cohen

__tests__/src/rules/scope-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce scope prop is only used on <th> elements.
  * @author Ethan Cohen

__tests__/src/rules/tabindex-no-positive-test.js

@@ -1,4 +1,3 @@
-/* eslint-env jest */
 /**
  * @fileoverview Enforce tabIndex value is not greater than zero.
  * @author Ethan Cohen

__tests__/src/util/attributesComparator-test.js

@@ -1,4 +1,3 @@
-/* eslint-env mocha */
 import expect from 'expect';
 import attributesComparator from '../../../src/util/attributesComparator';
 import JSXAttributeMock from '../../../__mocks__/JSXAttributeMock';

__tests__/src/util/getComputedRole-test.js

@@ -1,4 +1,4 @@
-/* eslint-env jest */
+import expect from 'expect';
 import getComputedRole from '../../../src/util/getComputedRole';
 import JSXAttributeMock from '../../../__mocks__/JSXAttributeMock';
 

__tests__/src/util/getExplicitRole-test.js

@@ -1,4 +1,4 @@
-/* eslint-env jest */
+import expect from 'expect';
 import getExplicitRole from '../../../src/util/getExplicitRole';
 import JSXAttributeMock from '../../../__mocks__/JSXAttributeMock';
 

__tests__/src/util/getImplicitRole-test.js

@@ -1,4 +1,4 @@
-/* eslint-env jest */
+import expect from 'expect';
 import getImplicitRole from '../../../src/util/getImplicitRole';
 
 describe('getImplicitRole', () => {

__tests__/src/util/getSuggestion-test.js

@@ -1,5 +1,4 @@
-/* eslint-env jest */
-import assert from 'assert';
+import expect from 'expect';
 import getSuggestion from '../../../src/util/getSuggestion';
 
 describe('spell check suggestion API', () => {
@@ -8,15 +7,15 @@ describe('spell check suggestion API', () => {
     const expected = [];
     const actual = getSuggestion(word);
 
-    assert.deepEqual(expected, actual);
+    expect(expected).toEqual(actual);
   });
 
   it('should return no suggestions given real word and no dictionary', () => {
     const word = 'foo';
     const expected = [];
     const actual = getSuggestion(word);
 
-    assert.deepEqual(expected, actual);
+    expect(expected).toEqual(actual);
   });
 
   it('should return correct suggestion given real word and a dictionary', () => {
@@ -25,7 +24,7 @@ describe('spell check suggestion API', () => {
     const expected = ['foo'];
     const actual = getSuggestion(word, dictionary);
 
-    assert.deepEqual(expected, actual);
+    expect(expected).toEqual(actual);
   });
 
   it('should return multiple correct suggestions given real word and a dictionary', () => {
@@ -34,7 +33,7 @@ describe('spell check suggestion API', () => {
     const expected = ['there', 'their'];
     const actual = getSuggestion(word, dictionary);
 
-    assert.deepEqual(expected, actual);
+    expect(expected).toEqual(actual);
   });
 
   it('should return correct # of suggestions given the limit argument', () => {
@@ -44,6 +43,6 @@ describe('spell check suggestion API', () => {
     const expected = 1;
     const actual = getSuggestion(word, dictionary, limit).length;
 
-    assert.deepEqual(expected, actual);
+    expect(expected).toEqual(actual);
   });
 });

__tests__/src/util/getTabIndex-test.js

@@ -1,4 +1,4 @@
-/* eslint-env jest */
+import expect from 'expect';
 import getTabIndex from '../../../src/util/getTabIndex';
 import IdentifierMock from '../../../__mocks__/IdentifierMock';
 import JSXAttributeMock from '../../../__mocks__/JSXAttributeMock';

__tests__/src/util/hasAccessibleChild-test.js

@@ -1,4 +1,4 @@
-/* eslint-env jest */
+import expect from 'expect';
 import hasAccessibleChild from '../../../src/util/hasAccessibleChild';
 import JSXElementMock from '../../../__mocks__/JSXElementMock';
 import JSXAttributeMock from '../../../__mocks__/JSXAttributeMock';

__tests__/src/util/implicitRoles/input-test.js

@@ -1,4 +1,3 @@
-/* eslint-env mocha */
 import expect from 'expect';
 import JSXAttributeMock from '../../../../__mocks__/JSXAttributeMock';
 import getImplicitRoleForInput from '../../../../src/util/implicitRoles/input';

__tests__/src/util/implicitRoles/menu-test.js

@@ -1,4 +1,3 @@
-/* eslint-env mocha */
 import expect from 'expect';
 import JSXAttributeMock from '../../../../__mocks__/JSXAttributeMock';
 import getImplicitRoleForMenu from '../../../../src/util/implicitRoles/menu';

__tests__/src/util/implicitRoles/menuitem-test.js

@@ -1,4 +1,3 @@
-/* eslint-env mocha */
 import expect from 'expect';
 import JSXAttributeMock from '../../../../__mocks__/JSXAttributeMock';
 import getImplicitRoleForMenuitem from '../../../../src/util/implicitRoles/menuitem';

__tests__/src/util/isAbstractRole-test.js

@@ -1,4 +1,3 @@
-/* eslint-env mocha */
 import expect from 'expect';
 import { elementType } from 'jsx-ast-utils';
 import isAbstractRole from '../../../src/util/isAbstractRole';

__tests__/src/util/isDOMElement-test.js

@@ -1,6 +1,5 @@
-/* eslint-env mocha */
-import { dom } from 'aria-query';
 import expect from 'expect';
+import { dom } from 'aria-query';
 import { elementType } from 'jsx-ast-utils';
 import isDOMElement from '../../../src/util/isDOMElement';
 import JSXElementMock from '../../../__mocks__/JSXElementMock';

__tests__/src/util/isDisabledElement-test.js

@@ -1,4 +1,3 @@
-/* eslint-env mocha */
 import expect from 'expect';
 import isDisabledElement from '../../../src/util/isDisabledElement';
 import JSXAttributeMock from '../../../__mocks__/JSXAttributeMock';

__tests__/src/util/isInteractiveElement-test.js

@@ -1,4 +1,3 @@
-/* eslint-env mocha */
 import expect from 'expect';
 import { elementType } from 'jsx-ast-utils';
 import isInteractiveElement from '../../../src/util/isInteractiveElement';